Like this:

Researchers found the Lord Howe phasmid, a giant stick insect, on Ball’s Pyramid, off the coast of Australia, in 2001.This was thought to have gone extinct in the late 20th century but the team has created new breeding colonies.

Source: Patrick Honan, Zoos Victoria

They hope to reintroduce the insects to their native habitat on nearby Lord Howe Island once they have eradicated the non-native predators.

When an ant is attacked by an enemy ant from another colony, the attacked ant retains the enemy’s smell and passes it onto the rest of the colony. This means that any ant from the colony will recognise any ant from the intruder’s colony.